Bike Comparison
    MSRP
    $1,999$2,399
    Where to Buy
    $1,999

    17% off At YT Industries

    Category
    Mountain Youth
    Weight
    33.7 lbs
    5.4
    Aluminum
    Fork
    RockShox Lyrik
    Wheels
    Aluminum
    27.5″
    Brakes
    Hydraulic Disc
    Groupset
    SX Eagle
    Drivetrain
    1 × 12
    Suspension
    Full
    Front Travel
    150mm
    Rear Travel
    150mm
    Brand Site

    us.yt-industries.com

    Summary
    The YT Industries Jeffsy Primus 27 is a 27.5″ aluminum frame mountain youth bike with upper mid-range components and hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Handling
    nimblestable
    Jeffsy Primus 27
    Other Mountain Youth bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    24 mph

    Jeffsy Primus 27

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Fork

    ROCKSHOX LYRIK BASE, 27.5“ | 150 mm Travel | RC | 100 x 15 mm Axle | Offset 44 mm | Adjustable Rebound, Air Pressure

    Travel150mm

    Spring TypeAir

    Shock

    ROCKSHOX DELUXE SELECT, Shock Length: 230 mm | Shock Stroke: 60 mm ≙ 150 mm Travel | Adjustable Rebound, Air Pressure, Custom Tune 0L1

    Headset

    ACROS AZX-576, High Cap | 2 Spacer 5 mm

    Stem

    E13 BASE 35, Length 40 mm | 35 mm Clamp | Rise 0° | 6061 AL

    Handlebar

    E13 BASE 35, Width 760 mm | Rise 20 mm | 9° Back Sweep | 5° Up Sweep | 6061 AL

    Saddle

    SDG BEL AIR 3.0, YT Custom | Width 140 mm I Lux-Alloy Rail

    Seatpost

    YT POSTMAN V2, Ø 31.6 mm | 125 mm | Std. Remote I Adjustable drop 20 / 10 / 5 mm

    Grips

    ODI ELITE MOTION V2.1, Lock On

    Groupset
    Rear Derailleur

    SRAM SX EAGLE, 12-speed

    Crank

    SRAM SX EAGLE, Crank Arm Length 165 mm | 32T | DUB

    Shifters

    SRAM SX EAGLE, 12-speed

    Cassette

    SRAM PG1210 Eagle, 11-50T | 12-speed

    Brakes

    SRAM G2 R, Rotor CENTERLINE Ø front 200 mm / rear 200 mm Adjustable Reach

    Wheels
    Rims

    CRANKBROTHERS Synthesis Enduro 2 Alloy, Aluminum Rims 27.5“ | Inner Width 31.5/29.5 mm | Front Hub 15 x 100mm Boost | Rear Hub 148 x 12 mm

    Tires

    FRONT: MAXXIS MINION DHF I REAR: MAXXIS MINION DHR II, Front: Tire Size 27.5“ x 2.4 I EXO Casing I 3C MaxxTerra Compound I Tubeless Ready I, Rear: Tire Size 27.5“ x 2.3 I EXO Casing I Dual Compound I Tubeless Ready

    Riders Also Compared